Brief report on the relation between complement C3a and anti dsDNA antibody in systemic lupus erythematosus.
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| Abstract |
Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by the production of a diverse array of autoantibodies and the dysfunctional activation of the complement system. The specific association between the complement component C3a (C3a) protein and antibodies specific for double-stranded DNA (anti-dsDNA), however, has not been studied in detail to date. This study was thus designed to more fully explore circulating C3a levels in SLE patients. In total, 13 SLE patients were enrolled in this study after having been diagnosed in accordance with the SLICC classification criteria, with 7 and 6 patients respectively exhibiting positivity for anti-dsDNA and anti-Sm autoantibodies. Serum complement component C1q (C1q) and C3a levels in samples from these patients were detected via Western blotting, while other serological, biochemical, and clinical parkers associated with disease activity were detected using standard laboratory techniques. The levels of serum C3a in anti-dsDNA+ patients were significantly elevated as compared to those in anti-Sm+ patients (P < 0.01), and a positive correlation between serum C3a levels and SLE Disease Activity Index scores was detected (P < 0.05, r = 0.6134). C3a levels are correlated with the degree of SLE disease activity and other clinically relevant readouts in SLE patients. C3a levels may also enable the differentiation between inactive and active SLE, while also offering value as an advantageous biomarker for thrombophilia monitoring in SLE patients.
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| Authors | Yao-Hua Cai, Jun Deng, Zhao-Lin Chen, Heng Mei, Liang Tang, Shan-Shan Luo, Yu Hu |
| Journal | Scientific reports (Sci Rep) Vol. 12 Issue 1 Pg. 7098 (05 02 2022) ISSN: 2045-2322 [Electronic] England |
| PMID | 35501405 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't) |
| Copyright | © 2022. The Author(s). |
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